EP1504721B1 - Echographe - Google Patents

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Publication number
EP1504721B1
EP1504721B1 EP03748538A EP03748538A EP1504721B1 EP 1504721 B1 EP1504721 B1 EP 1504721B1 EP 03748538 A EP03748538 A EP 03748538A EP 03748538 A EP03748538 A EP 03748538A EP 1504721 B1 EP1504721 B1 EP 1504721B1
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
image
tomographic
images
diagnostic apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03748538A
Other languages
German (de)
English (en)
Other versions
EP1504721A4 (fr
EP1504721A1 (fr
Inventor
Tomonao Kawashima
Kenji Kishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2002283802A external-priority patent/JP2004113628A/ja
Priority claimed from JP2002288951A external-priority patent/JP4276825B2/ja
Application filed by Olympus Corp filed Critical Olympus Corp
Priority to EP08021668A priority Critical patent/EP2042102B1/fr
Publication of EP1504721A1 publication Critical patent/EP1504721A1/fr
Publication of EP1504721A4 publication Critical patent/EP1504721A4/fr
Application granted granted Critical
Publication of EP1504721B1 publication Critical patent/EP1504721B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/4461—Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/13—Tomography
    • A61B8/14—Echo-tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/42—Details of probe positioning or probe attachment to the patient
    • A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
    • A61B8/4254—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient using sensors mounted on the probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4416—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to combined acquisition of different diagnostic modalities, e.g. combination of ultrasound and X-ray acquisitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461—Displaying means of special interest
    • A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/483—Diagnostic techniques involving the acquisition of a 3D volume of data

Definitions

  • a second observation is performed for finding how deep the lesion invades in a direction vertical to a surface of the lumen.
  • US 5,924,989 discloses a method and apparatus for generating a diagnostically usable three-dimensional image data using comparatively complex calculation with four weighting factors.
  • the ultrasonic diagnostic apparatus When an operator operating the ultrasonic diagnostic apparatus causes the display of a menu having different items and inputs a selection of an item from the displayed menu by using the keyboard 15 and/or the mouse 16, the data of the selected item is transmitted from the external input control circuit 37 to the controller 39.
  • the controller 39 drives and controls the circuits 31 to 36.
  • the construction of an ultrasonic tomographic image, the slicing of the tomographic image and/or the construction of tomographic parallel images thereof may be performed.
  • the controller 39 causes the image constructing circuit 31 to sequentially construct ultrasonic tomographic images as shown in Fig. 4 based on reflected echoes from the ultrasonic transducer 25 at a step S103.
  • reference numerals 1 to n are given to the ultrasonic tomographic images in order of the construction.
  • the controller 39 controls the monitor 14 to display side by side the newest ultrasonic tomographic image and the newest tomographic parallel images.
  • the tomographic parallel images 53 are re-constructed after the operator moves the slicing line marker 57.
  • the rotated tomographic parallel images 53 can be re-constructed every time the slicing line marker slightly moves if the processing by the controller 39, bus 38, image processing circuit 33, display circuit 34 and so on is fast enough. In this case, it appears to an operator that the slicing line marker 57 and the tomographic parallel images 53 vary in connection with each other simultaneously.
  • a twist occurs in the flexible shaft 26.
  • the twist causes ununiformity among plural ultrasonic tomographic images, and a distortion may occur on tomographic parallel images. This is because, in mechanical radial scanning, a position of a rotational angle of a motor is detected by a rotary encoder adjacent to the motor.
  • Fig. 17 is a block diagram showing an ultrasonic endoscope according to this variation example.
  • This display example can be achieved by performing a following operation.
  • Auxiliary image creating means creates an auxiliary image including a coordinates marker indicating a coordinates system, which is a reference for calculating position data or direction data of a scan plane. Under this construction, at which angle the locus is observed for a given auxiliary image can be easily understood.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Steroid Compounds (AREA)
  • Surgical Instruments (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Claims (17)

  1. Appareil de diagnostic à ultrasons obtenant de multiples images échotomographiques d'un processus où une sonde à ultrasons (11a) se déplace et scanne à l'intérieur d'une cavité corporelle d'un corps à examiner, l'appareil comprenant :
    un moyen de détection d'une information de position (13) pour détecter une information de position de multiples images échotomographiques (51) obtenues dans un processus où la sonde à ultrasons se déplace à l'intérieur d'une cavité corporelle d'un corps à examiner ;
    un moyen de construction d'images tomographiques parallèles (12) pour construire de multiples images tomographiques parallèles agencées le long d'un chemin de balayage de la sonde à ultrasons sur la base de l'information de position obtenue par le moyen de détection d'une information de position (13), et
    un moyen de découpage pour découper l'image échotomographique et créer des tranches des images échotomographiques,
    dans lequel le moyen de construction d'images tomographiques parallèles construit des images tomographiques parallèles en agençant les tranches,
    caractérisé en ce que le moyen de construction d'images parallèles (12) est adapté pour
    - stocker sous la forme d'une valeur initiale une valeur maximale stockable dans une cellule tampon Z,
    - si la distance d'un pixel depuis un plan présumé est plus petite qu'une valeur stockée dans la cellule tampon Z, pour stocker une distance du pixel le plus proche immédiatement sous les pixels du plan présumé sur une pluralité de tranches (52) créées depuis la pluralité d'images échotomographiques (51), et
    - si la distance d'un pixel depuis le plan présumé est supérieure ou égale à la valeur dans la cellule tampon Z, pour ne réaliser aucune transformation.
  2. Appareil de diagnostic à ultrasons selon la revendication 1, comprenant en outre un moyen de contrôle d'affichage (34) pour faire afficher au moyen d'affichage l'image échotomographique et les images tomographiques parallèles de sorte à les comparer.
  3. Appareil de diagnostic à ultrasons selon la revendication 1 ou 2, dans lequel le moyen de construction d'images tomographiques parallèles (12) construit de nouvelles images tomographiques parallèles par réécriture des pixels correspondant aux images tomographiques parallèles avec les pixels correspondant à l'image échotomographique chaque fois que l'image échotomographique est créée dans le processus où la sonde à ultrasons (11a) se déplace et balaye à l'intérieur d'une cavité corporelle d'un corps à examiner.
  4. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 3, dans lequel le moyen de détection d'une information de position (13) est adapté pour détecter les positions et orientations de multiples images échotomographiques.
  5. Appareil de diagnostic à ultrasons selon la revendication 4, comprenant en outre un moyen d'affichage affichant l'image échotomographique et les images tomographiques parallèles de sorte à les comparer.
  6. Appareil de diagnostic à ultrasons selon la revendication 2 ou 5, dans lequel le moyen d'affichage affiche l'image échotomographique et les images tomographiques parallèles sur un écran (14) de sorte à les comparer.
  7. Appareil de diagnostic à ultrasons selon la revendication 2 ou 5, dans lequel le moyen d'affichage affiche sur les images tomographiques parallèles un marqueur d'image échotomographique (55) indiquant une position de l'image échotomographique.
  8. Appareil de diagnostic à ultrasons selon la revendication 7, comprenant en outre un moyen de réglage du marqueur d'image échotomographique pour régler une position du marqueur d'image échotomographique (55), dans lequel le moyen d'affichage choisit et affiche l'image échotomographique selon une position du marqueur d'image échotomographique réglée par le moyen de réglage du marqueur d'image échotomographique.
  9. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 8, comprenant en outre un moyen de réglage d'une position de découpage pour régler une position de découpage de l'image échotomographique, dans lequel le moyen de découpage découpe une image échotomographique au niveau d'une position réglée par le moyen de réglage d'une position de découpage et crée des tranches de celle-ci.
  10. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 9, comprenant en outre un moyen de rotation pour construire de nouvelles images tomographiques parallèles (53) qui sont le résultat de la rotation des images tomographiques parallèles.
  11. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 10, dans lequel le moyen d'affichage affiche les images tomographiques parallèles et un indicateur indiquant une orientation des images tomographiques parallèles par rapport au moyen de détection de la position et l'orientation.
  12. Appareil de diagnostic à ultrasons selon la revendication 4, dans lequel le moyen de construction d'images tomographiques parallèles construit de nouvelles images tomographiques parallèles par réécriture des images tomographiques parallèles avec des pixels sur l'image échotomographique chaque fois que l'image échotomographique est créée dans un processus où une sonde à ultrasons se déplace à l'intérieur d'une cavité corporelle d'un corps à examiner.
  13. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 12, dans lequel le moyen de construction d'images tomographiques parallèles détermine les pixels à réécrire sur la base de la position et l'orientation détectées par le moyen de détection de position et d'orientation.
  14. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 13, dans lequel la sonde à ultrasons (11a) constitue un endoscope à ultrasons de type balayage radial mécanique réalisant un balayage radial mécanique.
  15. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 13, dans lequel la sonde à ultrasons (11a) constitue un endoscope à ultrasons de type balayage radial électronique réalisant un balayage radial électronique.
  16. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 13, dans lequel la sonde à ultrasons (11a) constitue un endoscope à ultrasons de type capsule.
  17. Appareil de diagnostic à ultrasons selon l'une quelconque des revendications 1 à 13, dans lequel la sonde à ultrasons (11a) constitue un endoscope à ultrasons de type balayage convexe réalisant un balayage convexe.
EP03748538A 2002-09-27 2003-09-18 Echographe Expired - Lifetime EP1504721B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08021668A EP2042102B1 (fr) 2002-09-27 2003-09-18 Appareil de diagnostic ultrasonique

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2002283802A JP2004113628A (ja) 2002-09-27 2002-09-27 超音波診断装置
JP2002283802 2002-09-27
JP2002288951 2002-10-01
JP2002288951A JP4276825B2 (ja) 2002-10-01 2002-10-01 超音波診断装置
PCT/JP2003/011891 WO2004028375A1 (fr) 2002-09-27 2003-09-18 Echographe

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08021668A Division EP2042102B1 (fr) 2002-09-27 2003-09-18 Appareil de diagnostic ultrasonique

Publications (3)

Publication Number Publication Date
EP1504721A1 EP1504721A1 (fr) 2005-02-09
EP1504721A4 EP1504721A4 (fr) 2008-03-05
EP1504721B1 true EP1504721B1 (fr) 2010-01-06

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EP03748538A Expired - Lifetime EP1504721B1 (fr) 2002-09-27 2003-09-18 Echographe
EP08021668A Expired - Lifetime EP2042102B1 (fr) 2002-09-27 2003-09-18 Appareil de diagnostic ultrasonique

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Country Status (5)

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US (1) US7775977B2 (fr)
EP (2) EP1504721B1 (fr)
AT (2) ATE499880T1 (fr)
DE (2) DE60336281D1 (fr)
WO (1) WO2004028375A1 (fr)

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Also Published As

Publication number Publication date
ATE499880T1 (de) 2011-03-15
EP1504721A4 (fr) 2008-03-05
EP1504721A1 (fr) 2005-02-09
WO2004028375A1 (fr) 2004-04-08
ATE454092T1 (de) 2010-01-15
EP2042102A1 (fr) 2009-04-01
DE60336281D1 (de) 2011-04-14
EP2042102B1 (fr) 2011-03-02
US7775977B2 (en) 2010-08-17
DE60330858D1 (de) 2010-02-25
US20050256402A1 (en) 2005-11-17

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